Home / 384,949.17-531,241.61-215,190.45

Finding the Fourth Proportional to 384,949.17, 531,241.61 and 215,190.45

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Solution

The fourth proportional to 384,949.17, 531,241.61 and 215,190.45 is: 296,969.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,949.17 : 531,241.61 = 215,190.45 : x
  2. Step 2: Convert to fraction form
    384,949.17/531,241.61 = 215,190.45/x
  3. Step 3: Cross multiply
    384,949.17x = 531,241.61 × 215,190.45
  4. Step 4: Simplify right side
    384,949.17x = 114,318,120,038.67
  5. Step 5: Solve for x
    x = 114,318,120,038.67/384,949.17
  6. Step 6: Final answer
    x = 296,969.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.